Software Diagnostics
If you're reasonably confident that your network hardware is OK but the network still doesn't work, the only thing left is software. Successful Web server connections depend on two components:
Simple network connectivity
Configuration of services (including httpd)
| If you need to. . . | Use |
|---|---|
| find network interface card name | netstat -i |
| find default route | netstat -r |
| test connection between two hosts | ping |
| view or modify network interface settings | ifconfig |
| add or delete routing information | route |
| determine your name resolution method | nslookup |
| look up a specific host name or IP address | nslookup |
Unix/Linux Troubleshooting
Network connectivity includes such things as your IP address and netmask, Ethernet, card configuration, ...
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